/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   ?Description

*

*/

#include <glxmodelwrapper.h>

#include <glxmodelparm.h>

#include <QDebug>

GlxModelWrapper::GlxModelWrapper(): mModel ( NULL),

    mOriginalRole(Qt::DecorationRole),

    mConvertRole(Qt::DecorationRole)

    {

    }

void GlxModelWrapper::setModel(QAbstractItemModel *model)

    {

    if(model && mModel != model)

        {

        disConnectFromModel();

        mModel = model;

        connectToModel();

        resetTheModel();

        }	

    }

void GlxModelWrapper::setRoles(int convertrole, int originalrole)

    {

	mConvertRole  =   convertrole;

	mOriginalRole =   originalrole;

	}

void GlxModelWrapper::scrollingStarted()

    {

    }

void GlxModelWrapper::scrollingEnded()

    {

    }

void GlxModelWrapper::connectToModel()

	{

	connect(mModel, SIGNAL(destroyed()),this, SLOT(modelDestroyed()));

	connect(mModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),this,SLOT(dataChangedinModel(QModelIndex,QModelIndex)));

	connect(mModel, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),this,SLOT(rowsAboutToBeInserted(QModelIndex,int,int)));

    connect(mModel, SIGNAL(rowsInserted(QModelIndex,int,int)),this,  SLOT(rowsInserted(QModelIndex,int,int)));

    connect(mModel, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),this,SLOT(rowsAboutToBeRemoved(QModelIndex,int,int)));

    connect(mModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),this,SLOT(rowsRemoved(QModelIndex,int,int)));

	}

void GlxModelWrapper::disConnectFromModel()

	{

	if(mModel)

	    {

	    disconnect(mModel, SIGNAL(destroyed()),this, SLOT(modelDestroyed()));

		disconnect(mModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)),this,SLOT(dataChangedinModel(QModelIndex,QModelIndex)));

		disconnect(mModel, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),this,SLOT(rowsAboutToBeInserted(QModelIndex,int,int)));

	    disconnect(mModel, SIGNAL(rowsInserted(QModelIndex,int,int)),this,  SLOT(rowsInserted(QModelIndex,int,int)));

	    disconnect(mModel, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),this,SLOT(rowsAboutToBeRemoved(QModelIndex,int,int)));

	    disconnect(mModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),this,SLOT(rowsRemoved(QModelIndex,int,int)));	

		}

	}

GlxModelWrapper::~GlxModelWrapper()

    {

	disConnectFromModel();

    }

int GlxModelWrapper::rowCount(const QModelIndex &parent ) const

    {

	Q_UNUSED(parent);

	if(mModel)

		return (mModel->rowCount());

	else

		return 0;

    }

int GlxModelWrapper::columnCount(const QModelIndex &parent ) const

    {

    Q_UNUSED(parent);

	return 1; 

    }

QModelIndex GlxModelWrapper::parent(const QModelIndex &child) const

    {

    Q_UNUSED(child);

    return QModelIndex();  // No need to Check mModel ,Should i Set mModel As parent

    }

QVariant GlxModelWrapper::data(const QModelIndex &idx, int role) const

    {

	if(mModel)

		{

		if(mOriginalRole == role)

			{

			return (mModel->data(idx,mConvertRole));

			}

		else

			{

			return (mModel->data(idx,role));		

			}

		}

	else

		{

		return QVariant();	

		}

    }

bool GlxModelWrapper::setData ( const QModelIndex & idx, const QVariant & value, int role )

    {

    if(mModel)

    	{

    	return (mModel->setData(mModel->index(idx.row(),0),value,role));

    	}

    else

    	{

    	return FALSE;

    	}

    }

QModelIndex GlxModelWrapper::index(int row, int column, const QModelIndex &parent) const

    {

    Q_UNUSED(parent);

    if ( ( row < 0 ) || ( row >= rowCount() )  || ( column < 0 )  || ( column >= columnCount() ) ) 

        {

        return QModelIndex();

        }

    return QAbstractItemModel::createIndex(row, column); 

    }

QModelIndex GlxModelWrapper::basemodelindex(int row, int column, const QModelIndex &parent) const

    {

    Q_UNUSED(parent);

    if(mModel)

        {

        return (mModel->index(row,column));

        }

    else

        {

        return QModelIndex();

        }

    }

void GlxModelWrapper::modelDestroyed()

    {

    disConnectFromModel();

    mModel = NULL;

    resetTheModel();

    }

void GlxModelWrapper::resetTheModel()

    {

    beginResetModel();

    endResetModel();

    }

void GlxModelWrapper::dataChangedinModel(QModelIndex startIndex, QModelIndex endIndex)

    {

    emit dataChanged(index(startIndex.row(),startIndex.column()),index(endIndex.row(),endIndex.column()));

    }

void GlxModelWrapper::rowsAboutToBeInserted(const QModelIndex &parent,int start,int end)

    {

    Q_UNUSED(parent);

    Q_UNUSED(start);

    Q_UNUSED(end);

    }

void GlxModelWrapper::rowsInserted(const QModelIndex &parent, int start, int end)

    {

    Q_UNUSED(parent);

    beginInsertRows(QModelIndex(), start, end);

    endInsertRows();

    }

void GlxModelWrapper::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)

    {

    Q_UNUSED(parent);

    Q_UNUSED(start);

    Q_UNUSED(end);

    }

void GlxModelWrapper::rowsRemoved(const QModelIndex &parent, int start, int end)

    {

    Q_UNUSED(parent);

    beginRemoveRows(QModelIndex(), start, end);

    endRemoveRows();

    }